Finding the Fourth Proportional to 109,464.84, 164,077.26 and 42,831.72

Step by Step Solution

1. Step 1: Write the proportion equation
   109,464.84 : 164,077.26 = 42,831.72 : x
2. Step 2: Convert to fraction form
   109,464.84/164,077.26 = 42,831.72/x
3. Step 3: Cross multiply
   109,464.84x = 164,077.26 × 42,831.72
4. Step 4: Simplify right side
   109,464.84x = 7,027,711,258.69
5. Step 5: Solve for x
   x = 7,027,711,258.69/109,464.84
6. Step 6: Final answer
   x = 64,200.63